Last updated: August 21, 2025
In September, Yerevan experiences a delightful transition into autumn, showcasing a diverse range of temperatures. The maximum temperature can reach a sweltering 34°C (94°F), while the average settles at a comfortable 19°C (67°F), and nighttime lows dip to around 5°C (42°F). Visitors can expect minimal rainfall, with only 6 mm (0.2 in) of precipitation over just 1 day, and a pleasant humidity level of 67%. This combination of warm days and cool evenings makes September an ideal time to explore the vibrant culture and stunning landscapes of Armenia's capital.
As September arrives in Yerevan, Armenia, the city experiences a delightful transition from the heat of summer to the more temperate autumn months. With minimum temperatures averaging around 5°C (42°F) and pleasant daytime highs reaching up to 34°C (94°F), September strikes a perfect balance with an overall average of 19°C (67°F). This month is characterized by comfortably warm days and cooler nights, making it an ideal time for outdoor activities and exploring the vibrant streets. The heat begins to ease, providing a refreshing respite as the days get shorter and the landscapes begin to shift into their autumn hues. Overall, September presents a charming invitation to enjoy the beauty of Yerevan before the chill of winter sets in.
In September, Yerevan experiences a notable decline in precipitation, recording only 6 mm (0.2 in) of rain over a single day, signaling the tail end of the dry summer months. This minimal rainfall reflects a continuing trend from the preceding months of June to August, where the city averaged a mere 9 mm (0.3 in) each month. The shift in weather patterns sets the stage for autumn, as precipitation begins to increase modestly in October and November. With only one day of rain in September, residents and visitors alike can enjoy pleasant, drier conditions, paving the way for the vibrant colors of fall without the interruption of frequent showers.
As summer transitions into fall, September in Yerevan, Armenia, brings a notable shift in humidity, decreasing to 67% from the drier 66% of August. This drop marks a continuation of the overall trend seen throughout the warmer months, where humidity levels gradually decline from a peak in the cooler winter months. Starting with the high humidity of 87% in January and maintaining elevated levels until May, the city experiences a gradual easing of moisture as temperatures rise. However, as September rolls in, residents can feel a slight reprieve in the air, hinting at the upcoming autumn chill. This trend sets the stage for a return to higher humidity levels in October, when averages climb back to 81%, signaling the re-emergence of moisture that characterizes Yerevan's winter months.
As summer fades into fall, September in Yerevan sees a UV Index of 9, categorizing the exposure level as very high. This means that despite the transition into autumn, residents and visitors should still take caution, with a burn time of only 15 minutes for unprotected skin. Throughout the year, Yerevan experiences significant fluctuations in UV intensity, peaking in May and June at an extreme level of 11 and 12 respectively. However, even as temperatures begin to cool, the UV rays in September remain potent, emphasizing the need for continued skin protection. For those interested in understanding more about seasonal variations, check out the detailed insights at Yerevan UV Index.
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As summer gracefully transitions into autumn, September in Yerevan, Armenia, offers a delightful balance of warmth and sunlight, recording an impressive 341 hours of sunshine. This marks a gentle decline from the sun-soaked days of July, which boasts the highest average at 416 hours, while still providing more light than the earlier months of the year. The trend throughout the year shows a steady increase in sunshine from the cold depths of January (210 hours) to the peak of summer in July. Although the days begin to shorten as October approaches, September's embrace of lingering summer warmth offers both residents and visitors the perfect opportunity to enjoy the city's vibrant culture and scenic backdrop, making it a splendid time to explore Yerevan's charming streets bathed in golden light.
As summer gently transitions into autumn, September in Yerevan, Armenia, emerges as a particularly sunny month, boasting a 79% chance of sunshine. This delightful shift follows the warm embrace of July and August, which saw sunlit days at 71% and 74% respectively. Notably, September stands out as the peak of solar abundance as it continues to capitalize on the lingering warmth of summer, making it a perfect time for outdoor activities. As the month progresses, though the chance of sunny days gradually declines to 69% in October, September offers a splendid opportunity to bask in the golden rays before the cooler months set in.
As September unfolds in Yerevan, Armenia, the city experiences a gentle transition in daylight duration, offering 12 hours of sunlight. This month marks a sweet spot following the vibrant summer, where daylight peaks at 14 hours in May through July. With each passing month from January’s 9 hours to the more abundant light in spring and summer, the gradual decrease in daylight during September hints at the approaching autumn. While the month still basks in significant daylight, it serves as a reminder of the rich variations throughout the year, as Yerevan prepares to embrace the shorter days of October.
As September rolls into Yerevan, the gentle breezes serve as a subtle transition from summer to autumn. With an average wind speed of 2.2 m/s (5 mph), the winds are slightly calmer than the peak summer months, yet still carry a refreshing touch. Compared to earlier months, September's winds are a reminder of summer's lingering warmth while hinting at the cooler days ahead. This gradual shift is reflected in the steady wind speeds throughout the year, where spring and early summer boast the highest averages, and autumn transitions bring milder gusts, setting the stage for the cozy vibes of fall. As the month progresses, those winds become part of the city’s charm, echoing the vibrant energy of Yerevan as it braces for the seasonal change.
Weather in Yerevan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Yerevan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present starkly contrasting weather conditions. In September, temperatures range from a mild 5°C (42°F) at night to a warm maximum of 34°C (94°F) during the day, with average temperatures around 19°C (67°F). The month sees minimal precipitation, averaging just 6 mm (0.2 in) over only one rainy day, and a comfortable humidity level of 67%. In contrast, January brings much colder temperatures, with lows plunging to -20°C (-3°F) and an average of -5°C (24°F). Daytime highs reach only 9°C (49°F), and the month experiences significantly more precipitation, approximately 22 mm (0.9 in), spread out over five days, accompanied by higher humidity at 87%. For more detailed information, you can check out Yerevan weather in January.
September and February present stark contrasts in weather. September enjoys milder temperatures, ranging from a minimum of 5°C (42°F) to a pleasant average of 19°C (67°F), peaking at a warm 34°C (94°F). Precipitation is minimal, with only 6 mm (0.2 in) over a single day, and humidity remains moderate at 67%. In contrast, February experiences much colder conditions, with temperatures plunging to a minimum of -20°C (-4°F) and averaging around -2°C (29°F), while the maximum only reaches 10°C (50°F). This month is also wetter, with 31 mm (1.2 in) of precipitation spread over 6 days and a higher humidity level at 88%. For more details on the weather in February, you can check Yerevan weather in February.
In September, the weather tends to be much warmer with average temperatures around 19°C (67°F), reaching a maximum of 34°C (94°F), while March is considerably cooler, with an average temperature of only 3°C (38°F) and a maximum of 20°C (68°F). Additionally, September experiences minimal precipitation, with only 6 mm (0.2 in) over just one day, in stark contrast to March, which can see up to 65 mm (2.6 in) of rain across approximately 12 days. The humidity levels are also higher in March at 85% compared to September's 67%, reflecting the seasonal transition. For more detailed insights, you can check Yerevan weather in March.
In comparing the weather between September and April, it's evident that each month presents its unique characteristics. September boasts a broader temperature range with minimums around 5°C (42°F) and maximums peaking at a warm 34°C (94°F), averaging a comfortable 19°C (67°F). Precipitation is minimal during this month, with only about 6 mm (0.2 in) expected over just one day, and humidity levels sit at a moderate 67%.
In contrast, April experiences much cooler temperatures, with lows of -4°C (26°F) and highs reaching only up to 24°C (75°F), averaging around 9°C (49°F). This month also sees significantly more precipitation, totaling approximately 61 mm (2.4 in) over 12 days, accompanied by higher humidity at 80%. For a more detailed look at April's weather patterns, you can refer to Yerevan weather in April.
When comparing the weather in September and May, notable differences emerge. September typically enjoys warmer temperatures, with a minimum of 5°C (42°F), an average of 19°C (67°F), and a maximum of 34°C (94°F). In contrast, May starts off cooler, with a minimum of 2°C (35°F) and an average temperature of 15°C (59°F), peaking at 31°C (88°F).
Precipitation levels also differ significantly; September sees just 6 mm (0.2 in) of rain over only one day, whereas May experiences much higher rainfall at 49 mm (1.9 in) spread across ten days. Humidity levels are relatively high in both months, with May at 78% and September at 67%. For more detailed insights into May's weather patterns, you can explore Yerevan weather in May.
In September, the weather shows a broader temperature range with a minimum of 5°C (42°F) and a maximum of 34°C (94°F), resulting in an average temperature of 19°C (67°F). The month experiences relatively low precipitation, with only 6 mm (0.2 in) and humidity at 67%. In contrast, June presents warmer conditions with a minimum temperature of 10°C (50°F) and a maximum of 36°C (97°F), leading to an average of 21°C (70°F). Precipitation in June is slightly higher at 9 mm (0.3 in) but still occurs on just one day, and the humidity is elevated at 79%. For a detailed look at June's weather patterns, you can visit Yerevan weather in June.
In comparing the weather of September and July, September tends to be cooler, with minimum temperatures starting at 5°C (42°F) and average highs reaching 34°C (94°F). In contrast, July experiences warmer conditions, showcasing a minimum of 10°C (50°F) and an average high of 37°C (99°F). While September has less rainfall, at only 6 mm (0.2 in) with one rainy day, July is slightly wetter with 9 mm (0.3 in) of precipitation, also falling on just one day. Humidity levels are lower in September at 67% compared to July’s 80%, contributing to a more comfortable feel as summer winds down. For more detailed insights on July weather, you can refer to Yerevan weather in July.
In September, temperatures in Yerevan range from a minimum of 5°C (42°F) to a maximum of 34°C (94°F), with an average temperature of 19°C (67°F). This is a noticeable drop from August, where the minimum is 9°C (49°F) and the maximum peaks at 36°C (98°F), averaging 23°C (74°F). Despite both months experiencing low precipitation—6 mm (0.2 in) in September and 8 mm (0.3 in) in August—humidity remains similar, with September at 67% and August slightly lower at 66%. For further details, you can check Yerevan weather in August.
In September, the weather is generally warm, with temperatures ranging from a low of 5°C (42°F) to a high of 34°C (94°F) and an average of 19°C (67°F). The month sees minimal rainfall, averaging just 6 mm (0.2 in) over only one day, and humidity levels sit at a moderate 67%. In contrast, October brings a significant drop in temperature, with overnight lows plummeting to -4°C (26°F) and daytime highs averaging 12°C (53°F), reaching a maximum of 26°C (79°F). This month also experiences increased precipitation, totaling 18 mm (0.7 in) over three days, and a rise in humidity to 81%. For more detailed insights, you can check Yerevan weather in October.
September weather in Yerevan is marked by higher temperatures, with daily averages hovering around 19°C (67°F) and maximums reaching up to 34°C (94°F). The month experiences minimal rainfall, totaling just 6 mm over a single day, and the humidity sits at a comfortable 67%. In contrast, November brings a significant drop in temperatures, with averages plummeting to around 4°C (40°F) and lows dipping to -9°C (17°F). This month also sees increased precipitation, with 23 mm spread over five days, and higher humidity levels at 84%. For a detailed look at November's conditions, check out Yerevan weather in November.
In September, the weather remains quite warm, with average temperatures around 19°C (67°F) and occasional highs reaching up to 34°C (94°F). The month experiences minimal precipitation, averaging just 6 mm (0.2 in) and only one rainy day, coupled with a humidity level of 67%. In contrast, December brings a stark chill, with average temperatures dropping to -1°C (31°F) and lows plunging to -17°C (1°F). The month is significantly wetter, with 39 mm (1.5 in) of precipitation over about eight rainy days and an increase in humidity to 85%. For more specific information, check out Yerevan weather in December.
As September unfolds in Yerevan, the weather offers a delightful transition from the scorching heat of summer to a more moderate climate. With maximum temperatures reaching 34°C and an average of 19°C, the month retains warmth while heralding the arrival of cooler evenings. Unlike the humidity-laden summer months, September enjoys a milder humidity level of 67%, providing a refreshing atmosphere for outdoor activities. Precipitation is minimal, with only a single rainy day contributing a scant 6 mm, making it a great time for both locals and visitors to explore the city. For a deeper dive into what Yerevan has to offer throughout the year, check out Yerevan Climate.